Researchers at the University of California, San Francisco are launching the biggest heart health study in history. One million participants will be recruited to join a decade-long heart study powered entirely through smartphone surveys, e-visits, apps, and connected medical devices.

Heart eHealth will capture big data and extract unknown correlations and best practices. In an effort to cast as large a net as possible, researchers are using all available means to measure participants including “mobile apps to track your activity or heart measures (such as heart rate), sensors to measure things (like ECGs, sleep, blood pressure, weight), [and] an app to integrate with your Facebook to study the impact of social networking on health.”

The study is seeking participants over 18 with or without known heart issues.